Margot Robbie has a serious makeunder in new film Z for Zachariah

SHE’S become known for her blonde hair and slick red carpet looks — but Margot Robbie has undergone a serious makeunder for her new movie.

Margot Robbie in Z for Zachariah Picture: Roadside Attractions

MARGOT Robbie has undergone a serious makeunder for her upcoming movie Z for Zachariah.

The role required the 25-year-old Aussie stunner to go for a much more natural look — which meant losing her golden blonde hair and paring back the makeup.

Margot went from blonde to brunette for the role.

Chris Pine and Chiwetel Ejiofor also star in the flick.

While it’s a stark contrast to the slick looks The Wolf Of Wall Street star’s usually rocking on the red carpet, Margot still manages to look just as beautiful.

The flick, which also stars Chris Pine and Chiwetel Ejiofor, centres around the love triangle between two guys and a girl (Robbie) after they become the only survivors of a disaster that has wiped out civilisation.

Margot goes for a natural look in the role.